Cover for shipping drums



y 1932. J. M. COUGHLIN 1,868,940

COVER FOR SHIPPING DRUMS Filed May 13, 1950 JM dauyh lin/ O attozuu o.

Patented July 26, 1932 UNITED STATES JAMES M. COUGHLIN, 0F WILKES-BARBIE, PENNSYLVANIA COVER FOR SHIIPlPING DRUMS Application filed May is, 4930'. Serial 110. 452,611

This invention relates to a cover for shiping drums of the type disclosed, for example, in Patent 1,334,343, dated March 23, 1920.

Drums used for shipping purposes are usuall formed of light steel, one head of the drum eing formed with an opening and with a cover or closure for the opening.

Considerable difficulty has been experienced in preventing leakage of the contents of the drum between the cover and the wall of the opening in which it is seated. Another roblem has been to prevent seepage of water into the drum between the cover and the wall of the opening. o

It is an ob]ect of the present invention to provide a drum closure having none of the disadvantages heretofore mentioned.

It is another object to provide a closure which can be held in place securely by means of turn buttons or lugs as heretofore, or by crim ing.

W1th the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction herein described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed ma be made within the scope of what is claime without departing from the spirit of the invention.

In the accompanying drawing the preferred form of the invention has been shown.

In said drawing Figure 1 is a plan view of a drum provided with a. closure such as constitutes the present invention.

Figure 2 is a central section therethrough on line 2-2, Figure 1, a portion of the cover being shown crimped into locking engagement with the head.

Referring to the figures by characters of reference, 1 designates the head of a drum 2 provided with a central circular opening 3 surrounded by a continuous upstanding flange 4. The upper edge of the flange is rolled outwardly to form an annular bead 5 "which extends above the plane occupied by the marginal portion of the'head 1. A circular groove 6 is pressed into the outer face of the head and is concentric with flange 4. The cover comprises a sheet metal disk 7 having aconcentric inverted channel 8 pressed or otherwise formed therein and located where it will receive flange Land bead 5 when the cover is forced into closing position. The marginal portion of the cover indicated at 9 is adapted to rest on the head 1 and has its edge bent to form an annular bead 10 located where it can be seated in the groove 6. Y

If desired lugs or buttons 11 can be pivotally connected to the head 1 where they can be turned into and out of lapping engagement with the marginal portion 9 of the cover.

' After the drum has been filled with material to be shipped the cover is placed so that bead 5 can enter the inverted channel 8. The cover is then forced tightly to its seat until its marginal portion 9 bears against head 1 and head 10 fits snugly in groove 6. 'By turning the buttons or lugs 11' to the positions shown, the cover will be held in place securely. If preferred, however, the outer wall of the inverted channel 8 can be pressed in- (5 wardly, as by crimping, so as to underlie the bead 5 and thus securely fasten the cover to the head. Either or both of these means of fastening may be employed.

It will be noted that when the cover is in place any water that might be trapped upon the head 1 will not drain into the drum, because the bead 5 is supported above the level of the margin of the head and the water would, therefore, drain over the margin.

The closure herein described constitutes an eflicient seal which will prevent both leakage from the drum and seepage of moisture into the drum.

What is claimed is:

1. A drum head having an opening and a groove concentric with the opening, a flange extending outwardly from the head and surrounding the opening, said flange projecting above the plane occupied by the marginal portion of the head, a cover insertable into the space defined by the flange and having an inverted annular channel for the reception of the flange, the marginal portion of the cover forming an annular flange adapted to rest flat onthe head and surround the flange on the head, and means on said portion for seating in the groove.

I 2. A drum head having an o ening, an out= standing flange surrounding t e opening, an annular head on the flange, a cover having an inverted annular channel for receivin the flange and bead, one Wall of the channe underlying the greater portion of the bead to fasten the cover to the head, and an annular head on the cover, there being a groove in the head for the reception of the bead.

In testimony that I claim the fore oing as my own, I have hereto aflixed my slgnature.

JAMES M. COUGHLIN. 

